Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema already provides descriptions for all four parameters (url, host, json, zone), covering 100% of them. The tool description does not add any semantic meaning to these parameters or clarify how they relate to the classification. Following the baseline rule for high schema coverage, a score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.